/* ── Sidebar navigation hierarchy ──────────────────────
   Increases visual distinction between nesting levels.
   Uses border guide + deeper indent (like VS Code).
   Applies to desktop sidebar (.md-sidebar--primary).
   ─────────────────────────────────────────────────── */

/* All nested navs get deeper indent */
.md-sidebar--primary .md-nav .md-nav .md-nav__list {
  padding-left: 0.6rem;
}

/* Subtle left border as indent guide */
.md-sidebar--primary .md-nav .md-nav {
  border-left: 1px solid var(--md-default-fg-color--lightest);
  margin-left: 0;
}

/* Nested sections: section title normal weight, items slightly lighter */
.md-sidebar--primary .md-nav .md-nav .md-nav__link {
  font-size: 0.78rem;
}

/* Active/current item highlight */
.md-sidebar--primary .md-nav__item--active > .md-nav__link {
  font-weight: 600;
  color: var(--md-primary-fg-color);
}